在你的OkHttpClient中禁用ipv6协议。可以通过设置SocketFactory来实现。以下是示例代码：

OkHttpClient client = new OkHttpClient.Builder()
        .socketFactory(new SocketFactory() {
            @Override
            public Socket createSocket() throws IOException {
                return new Socket();
            }

            @Override
            public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort) throws IOException {
                // Disable ipv6 by specifying an empty array for the address
                return new Socket(AddressFamily.IPv4, SocketType.Stream, ProtocolType.Tcp);
            }

            @Override
            public Socket createSocket(InetAddress host, int port) throws IOException {
                // Disable ipv6 by specifying an empty array for the address
                return new Socket(AddressFamily.IPv4, SocketType.Stream, ProtocolType.Tcp);
            }

            @Override
            public Socket createSocket(String host, int port, InetAddress localHost, int localPort) throws IOException {
                // Disable ipv6 by specifying an empty array for the address
                return new Socket(AddressFamily.IPv4, SocketType.Stream, ProtocolType.Tcp);
            }

            @Override
            public Socket createSocket(String host, int port) throws IOException {
                // Disable ipv6 by specifying an empty array for the address
                return new Socket(AddressFamily.IPv4, SocketType.Stream, ProtocolType.Tcp);
            }
        })
        .build();

在这个示例中，我们通过创建一个自定义的SocketFactory来禁用ipv6。我们将所有的地址都指定为Ipv4，从而忽略ipv6。在客户端创建时，我们将新的SocketFactory设置为OkHttpClient的socketFactory属性。这样，在使用OkHttpClient发起连接时，将使用我们设置的SocketFactory，从而避免慢速的ipv6连接。